FAIRFIELD-SUISUN, CALIFORNIA
Medical student Liesl Eibschutz loads a syringe with a dose of COVID-19 vaccine made by Pfizer and BioNTech. New research bolsters the case that the vaccine reduces the risk of a coronavirus infection.(Allen J. Schaben/Los Angeles Times/TNS)
Studies of hospital workers suggest Covid-19 vaccines prevent coronavirus infections
The Covid-19 vaccines being administered in the U.S. were authorized for use because they dramatically reduced the risk of getting the disease when tested in clinical trials. However, those trials didn’t test the vaccines’ ability to prevent a coronavirus infection – the first step on the road to Covid-19.